//#define _CRT_SECURE_NO_WARNINGS
//#include<stdio.h>
//#include<stddef.h>
//struct S
//{
//	char c;
//	int a[3];
//}s;
//int main()
//{
//	printf("%d %d", offsetof(struct S, a[1]), sizeof(struct S));
//	return 0;
//}